diff options
-rw-r--r-- | tests/spec/ext_framebuffer_multisample/draw-buffers-common.cpp | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/tests/spec/ext_framebuffer_multisample/draw-buffers-common.cpp b/tests/spec/ext_framebuffer_multisample/draw-buffers-common.cpp index 1a898b2ba..6f54dfe86 100644 --- a/tests/spec/ext_framebuffer_multisample/draw-buffers-common.cpp +++ b/tests/spec/ext_framebuffer_multisample/draw-buffers-common.cpp @@ -699,9 +699,19 @@ draw_image_to_window_system_fb(int draw_buffer_count, bool rhs) GL_RGBA, GL_FLOAT, image); } + + /* Rendering using gldrawPixels() with dual source blending enabled + * produces undefined results. So, disable blending in visualize_image + * function to avoid undefined behavior. + */ + GLboolean isBlending; + glGetBooleanv(GL_BLEND, &isBlending); + glDisable(GL_BLEND); visualize_image(image, GL_RGBA, pattern_width, pattern_height, draw_buffer_count + 1, rhs); + if(isBlending) + glEnable(GL_BLEND); free(image); } |